//安装模块 npm install node-inspect -g
const http = require("http")
http.createServer((req, res) => {
    let username = "zhangsan";
    let age = 20;
    age = age + 1;
    debugger;
    console.log(age);
    debugger;
    console.log(username);
}).listen(8081);
console.log("server is listening 8081")
// node --inspect-brk node-server.js
// chrome://inspect/#devices